Thanks for the answers - I appreciate the help, truly! I'm protecting the products in this way at the request of the authors of the materials. I had done the same thing prviously for another person, also an author, and when they talked about their prospective sales ventures, this is how they all decided they want to do it - and I am not of a mind to argue with them. I got it working with no grief or compliants, and plenty of sales, on the VirtueMart site, and Zen Cart goes about things in a VERY similar manner, with all of the things to keep in mind that you both mention. And RodG, I thought that by keeping the question simple and just asking which pages were involved, I'd be pointing out that I knew I'd be making custom modifications to those pages. I didn't expect to be grilled on the whys of the situation - no offense, but let me take on the dangers, risks, trials and tiribulations without policing! For my part I promise not to bug you with any more questions on the topic.

So now I know where to start with the mods - thank you both again!